Distinctive GP-60 135 with its off-center headlight, and two partners, rush Santa Fe's hotshot pig Train 188 west at Chino, Ariz. after a crew change at Seligman in the background. In another 20 miles No. 188 will crest Yampai summit (slightly over a mile high in elevation) and then it is downhill all the way to the Calif. border at the Colorado River, elev. 475-ft.